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1 from django.db.backends import BaseDatabaseValidation |
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2 |
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3 class DatabaseValidation(BaseDatabaseValidation): |
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4 def validate_field(self, errors, opts, f): |
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5 "Prior to MySQL 5.0.3, character fields could not exceed 255 characters" |
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6 from django.db import models |
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7 from django.db import connection |
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8 db_version = connection.get_server_version() |
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9 if db_version < (5, 0, 3) and isinstance(f, (models.CharField, models.CommaSeparatedIntegerField, models.SlugField)) and f.max_length > 255: |
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10 errors.add(opts, |
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11 '"%s": %s cannot have a "max_length" greater than 255 when you are using a version of MySQL prior to 5.0.3 (you are using %s).' % |
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12 (f.name, f.__class__.__name__, '.'.join([str(n) for n in db_version[:3]]))) |
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13 |